| Herenthout to Novi di Modena | 516.55 mi (831.30 km) |
| Herenthout to Novi Ligure | 478.94 mi (770.78 km) |
| Herenthout to Nuoro | 779.84 mi (1,255.03 km) |
| Herenthout to Occhiobello | 532.72 mi (857.33 km) |
| Herenthout to Oderzo | 512.21 mi (824.33 km) |
| Herenthout to Oggiono | 425.93 mi (685.47 km) |
| Herenthout to Olbia | 742.21 mi (1,194.47 km) |
| Herenthout to Oleggio | 422.39 mi (679.77 km) |
| Herenthout to Olgiate Comasco | 417.59 mi (672.04 km) |
| Herenthout to Olgiate Olona | 425.23 mi (684.34 km) |
| Herenthout to Omegna | 400.42 mi (644.42 km) |
| Herenthout to Opera | 447.73 mi (720.55 km) |
| Herenthout to Oppeano | 500.20 mi (804.99 km) |
| Herenthout to Orbassano | 443.18 mi (713.23 km) |
| Herenthout to Orbetello | 674.05 mi (1,084.77 km) |
